Water-heater.



T; MUEHLEISEN.

WATER HEATER. APPLICATION FILED FEBJZI. 1918.

Illllllllll Fay].

Ratemel Jan. 14, 1919.

INVENTOR.

Thomas ll'aqhlesem I THOMAS MUEHLEISEN, OF SAN DIEGO, CALIFORNIA.

WATER-HEATER.

i ,can ,oee.

Specification of Letters Patent.

ratenteaaan. 14, 1919.

Application filed February 21, 1918. I Serial No. 218,504.

T all whom it may concern lle it known thatI, THOMAS Mnnnznmsnit,

a citizen of the United States, residing at San Diego, in the county ofSan Diego and State of California, have invented certain new and usefulImprovements in lVater- Heater-Coil Mechanism, of which the following'is aspecification.

My invention relates to coils for water heaters and the means forconnecting said coils, and the First, to provide a water heater coil inwhich the water from the service pipe circulate's upwardly. anddownwardly through the heater coils so that the water circulate-s towardthe heat and approximately twice the distance it doesin the conventionalheater coils. Second, .to

forconnecting tot-he ordinary or conven- 'tance as the ordinary.

llOIml coil now in use, which will cause the water to circulate upwardlyand downwardly and approximately twice the disihird, to provide aconnection for both the top and the bottom oi the coils which may bercadilyuscd in connection with the conventional coils now in use as wellas with. new coils: and fourth, to provide a water heater coil mechanismwhich is simple and economical of g-onstruction, durable, easy toinstall, one

to repair-,vcry eiiicient ln-its action and wi 1 not readily deteriorateor get ut of order.

With these and other objects in view as will appear hereinafter,myinvention consists of certain novel features of construction,combination and arrangement of parts and portions as will hishereinafter de scribed in detail andpartici'ilarly set forth 'in theappended claims, reference being had to the accompanying drawings and tothe characters of reference thereon which form a part of thisspecification, in which:

Figure l is a sectional view of a heater casing and showing my coilmechanism in position therein ready for use, showing a portion, 'thereofin section and a portion in elevation to facilitate the illustration.Fig.

2 is a top view thereof'with the top of the heater casmg removed. Fig. 3is a longitudlnal sectional view on an enlarged scale of the lowerconnecting member for. connecting the regular water service pipe and theheated water pipe with the lower end of the coil and Fig. 4 is a similarsectional view of the connectin member for connecting the upperends othe coils together.

and illiistrated a double coil for water heatw ers but-that a triplecoil may be used with objects of my invention are:

provide a means tending end of the member Similar characters ofreference refer to similar parts throughout the several views of thedrawings.

It. will be here noted that I have shown but slight changes in theconnection without 5 departing from the principle involved ahd it willbe further noted that the structure herein may be used either ,forcirculating the water through'two coils or through a, single coil bysimply changing the service pipe connection to my connecting members.The inner coil 1, outer coil 2, lower connecting member 3, and upperconnecting member .4, constitute the principal parts of my coilmechanism. The coils 1 and 2 are positioned the one inside of the otherin the conventional manner and they are rigidly secured into the member3, member 3 is shaped as shown best in Figs. 1. and 3 of the drawingsprovided with a partition 3 separating said member into lower ends ofthe coils 1 and 2 connect with preferably by brazing. The

these separate passages 3* and 3, a portion 8 of this member 3 is roundand reduced leaving a shoulder 3 to rest against the inside surface ofthe heater casing and this reduced portion is provided with an externalthread 3 adapted for the nut- 3 which is a lock nut adapted to securethis .connecting member 3 rigidly to the casing thus supporting thecoils in position. Communieating with the passage 3, in the reducedportion 3 is a pipe 5 which leads to the ordinary water system, andconnecting'with tho passage-3. is a service pipe 6 connected withreceptacle or fixture in which thejhot' water is to be used. In theoutwardly' ezt 3 is a plug' 3 forming a dead :end in that end of thememher 3. The connecting member 4: is a hollow casting provided withholes adapted for the upper end of the coils 1 and 2 which are securedthereto, preferably by brazing and it is provided with an upwardlyextending portion in which is secured an ordinary pipe plug 4 so thatwhen this pipe plug is in position the water circulates from the upperend of the coil l'into the coil 2 and down through the coil 2 throughthe passage 3" i pipe 6. If however, it 110 andinto the service isdesired to use the coil in the conventional manner the holes to whichthe pipes'5 and 6 are connected may be plugged and the service pipeconnected in the place of the plug 3. The plug a removed and the hotwater service pipe 6 is placed therein instead of the plug and the waterfrom the ordinary water system will then circulate from the bottom ofeach coil to the top and out in the ordinary or conventional manner. I

' Though I have shown and described a particular construction,combination and arrangement of parts and portionsl do not wish to belimited to this particular construction, combination and arrangement butdesire to include in the purview of my invention and construction,combination and arrangement substantially as set forth in the appendedclaims.

It is obvious that with this construction there is provided a coilmechanism in which a small coil space may be utilized so that the wateris heated to approximately double the temperature thus, adding to theefiiciency of the same size coil spaceythat the mechanism may be readilychanged to'either single or double circulation as desired that themechanism as-a whole is simple, and eco-' nomical of construction,durable and eliclent.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is:

1. In water heater coil mechanism, means for connecting the lower end ofthe coil separately or jointly with a water service pipe, comprising afitting provided with channels therein communicating with the separatecoils, means for connectin a cold water service pipe with one of said cannels and a hot water service pipe with another of said channels andmeans for connecting the service pi e with both of said channelsinstcelad of wit the separate channels as desire 2:111 water heaterc'oil mechanism, means for connecting the lower end of the coilseparately or jointly with a water service pipe, comprising a fittingprovided with channels therein communicating with the separate coils,means for connecting a cold water service pipe with one of said channelsand'a hot water service ipe with another of said channels, means orconnectin the service ipe with both of said channe s instead oi with theseparate channels as desired, and means for connecting the upper ends ofsaid coils, whereby water will circulate from one coil to the other, andmeans for connecting said connection with the serrice'pi e, whereby thewater will circulate upwar ly in one coil and downwardly in the other orupwardly through both coils and out in to the service pipe.

3. In a water heater coil mechanism, the combination with a plurality ofwater heater coils, of means secured to t 1e lower ends of said coilsprovided with separate channels therein, communicating with the separatecoils of the water heater, 3 cold water service pipe communicating withone of said channels, a hot water service pipe communicating withanother of said channels. means for connecting both of said channels tothe service pipe in lieu of the separate hot and cold water servicepipes. means for connecting the upper ends of said coils and means forconnecting saidconnection with the hot water service pipe, or closin itto said hot water service pipe as desire whereby the water may be madeto circulate from the cold water service pipe upwardly in one of saidcoils and downwardly in another of said coils and to the hot waterservice pipe or may be made to circulate upwardly through said coils andout through the upper connection to the service pipe as desired.

In testimony whereof, I have hereunto set my hand at San Diego,California, this 13th day of February, 1918.

THOMAS MUEHLEISEN.

